Adjustable seed planter and fertilizer



June 7, 1932. W, 'I'- SNYDER I ADJUSTABLE SEED PLANTER AND FERTILIZERFiled March 2o, 1930 s sheets-sheet 1 June 7, 1932. W T SNYDERADJUSTABLE SEED PLANTER AND FERTILIZER Filed March 20, 1930 6Sheets-Sheet 2 gwumtoz M 7. Snyder atto: nu,

June 7, 1932.

W. T. SNYDER ADJUSTABLE SEED -PLANTER AND FERTILIZER 6 Sheets-Sheet 5Filed March 20, 1930 June 7, W, T, SNYDER ADJUSTABLE SEED PLANTER ANDFERTILIZER Filed March 20, 1950 6 Sheets-Sheet 4 /lxjl M l. @11.7 Inl.T'Snycler goooljco a a q June 7, 1932. w. T` sNYDER ADJUSTABLE SEEDPLANTER AND FERTILIZER 6 Sheets-Sheet Filed March 20, 1930 June 7, D W1T. SNYDER ADJUSTABLE SEED PLANTER AND FERTILIZEH Filed March 20, 1930 6Sheets-Sheet 6 Patented June 7, 1932 y U-Nrrsn 'srfresI WILLIAM T.SNYDER, OF SQDUS; Y

ADJUSTABLE SEED :etaleren AND -riinrrnrznn j` Application nea naar 2.0,.1930; S'eiailroiraae."'

rhis invention relates to seed planters such as are used for plantingbeans, corn anu other crops wherein the seeds Vare planted in.

wherein the distance between the hills may be regulated. p A i i furtherobject is to provide a planter so constructed that fertilizer will loedischarged E along with lthe seed. A still further object is to improveupon the means for. .feeding or discharging seeds from the seed hopper.and to provide very simple means wherebythe dista f ce traversed by the'machine between one planting and the next following planting may becontrolled, this means preferably comprising va circumfen cntiallycorrugated wheel, the corrugations being arranged in a plurality ofzones, the corrugaticns in one zone being nearer vto eachv other thanthe corrugations 1n the next adja-v cent zone. l

1 further object is to provide improved means whereby the fertilizer mayhe taken from the fertilizer hopper and discharged into the fertilizerspout and from thence to a point where the seed is deposited. anotherobject is to provide means whereby either or both of theseed plant-ingde '15 vices and their corresponding fertilizer discharging means may beoperated so as to pro.- vide for planting the fertilizer in one rowortwo rows as desired.

Other objects will appear in' the course of e0 the followingdescription.

hij; invention is illustrated in the accompanying drawings, wherein z-4Figure 1 is a side elevation of a planter and fertilizer constructed inaccordance with my invention;

Figure 2 is a section on the line 2-27'0f Figure 1;

Figure 3 is a top plan view of a planter constructed in accordance withmy invention;

Figure 4 is a fragmentary section concenof the planter spout;

disk;``V op .A Figure 5 is a fragmentary vertical ysection through thefertilizer hopper 'and' 'spout and showing thefertili'zerfeeding-"mechanisininy elevation; i Y y j Y`ligurej ifs a top plan Viewofthe' fertilizer. conveyor; f

' Figure tricoto the centernof the planter operatingfA isa sideelevation ofthe 'frame for supporting the sprocket Wheel shafts on the"fertilizervfeeder, the sh'a/fts'being shownf in Section; i a .f FigureSis a front elevation ofthe planter hopper and supporting frame;

AFigure 9 is a fragmentary seeti'ontl the top of the planter hoppershowY shaft in elevation;V

rough e the..

AFigure 10 is a section on theV 'line 10-1O ofl Fgufie); l." .7 t" fFigure 11 is a fragmentary elevation show ing the means whereby theframe supporting the furrow opener 'israised or lowered; y Figure 12l isa vertical sectional view throughV the lower end ofthe planter'and'fer-` tilizerspouts; Y A 1" fFigureflS is a seoti'on'on the Vline13418 of Figure`12;l "y 1' Y f f Figure 14 isy atop plan view of theseed disky I` p .A Figurel is a top plan view of the bottom Figure 1 6is a transverse section onfthe y line 16-'16 of Figure 13.

Referring to thesefdrawings, 10 designates the supporting frame of themachine which is shown as rectangular inform, thisv supe. porting framebeing mounted Vupon a` sectional aXle 11 which extends transverselyT of:the'i'rame'of the machine andis mounted' in suitable'bearin gs 1Q yandcarries theV traction wheels 13. These traction wheels fare keyed uponthe axle as by the keys 14 and are adapt-` ed to be shifted in or outtoincrease or de? crease the Wheel base andto be held in their shiftedpositions by said screws or' other means. Y y1 L 'q i Extending fromfronttov rear ofthe frame are the two fra-me bars lforming part oftheframe itself and rigidtherewith.h These ,also carry bearings 12` for theyaxle 11. Pivoted' liti same bolt. This permits the tongue to be ad'-Vjusted up or down as desired. Suitable draft appliances are to beattached to the tongue,

these being shown as comprising the usual evenei' bar 21 andwhiflie-trees connected thereto.

Mounted upon the transversely extending forward and Vrear members of theframe 10 and extending forward and rearward are two frames, eachdesigned to support a fertilizer hopper and a seed hopper 4and theattendant mechanism thereof. These supporting frames are alikeaiid aredisposed one on each side of the middle of the machine and areadjustable transversely toward or from the middle of the machine. Asillustrated, these supporting frames each consist of the longitudinalsupporting beams 22 connected by transverse supporting members vof anysuitable character. The beams 22 are held in spaced relation toV eachother and the frames` formed by the supporting beams 22 and thetransverse members are adjustable upon the forward and rear frame barsof the frame 10 and are held in their adjusted position by pins or bolts23 passing through the ends of the frames and through apertures 24 inthe frame 10. Mounted in bearings in the frame bars 15 and adjacent therear end of the ma chine is a tubular shaft section 25. Mounted inbearings 26 on each of the shiftable frame bars 22 isashaft section 27whichtelescopes into the shaft section 25. Any means may be provided forgiving rotative engagement to the shaft sections 27 from the shaftlsections 25, but preferably I provide clutch members 28 mounted upon theextremities of the tubular shaft section 25 and complementary clutchmembers 29 adjustably mounted upon the shaft sections 27.

These clutches 29 are held in place on the shaft sections 27 by meansofsetscrews. Thus when the supporting bars 22 are adjusted toward eachother or away from each other, the clutch members 29 are released fromengagement with the shaft sections 27 and shiftedy along these rshaftsections until they have proper engagement with the clutch members 28.vf

Mounted upon each of the frames 22 adjacent the rear end thereof is afertilizer' hopper 30 shown as rectangular in form with rounded'corners.Each fertilizer hopper is provided with a suitabl-evcover so that whenthe coter is open, the fertilizer hopper may be iilled with fertilizer.The rear end of each fertilizer hopper is hinged as at 31 to the framebeams 22-and a door or gate 32 is provided at the front of the hopperadjustably engaged by a set screw 33. Forming a floor beneath eachfertilizer hopper are hard wood blocks 34 through which shafts 27 and 35pass, the shaft 35 being disposed at vthe forward end of the hopper. Thehard wood blocks are spaced apart from eachv other as at 36 and mounteduponthe shafts 27 and 35 are the sprocket wheels 37 over which passes asprocket chain 38. This chain is formed, as usual, of a plurality ofsprocket links.

l-lingedly mounted upon. these links are a plurality of blades 39attached to clips40V having angular lugs 41 which are directly pivotedto the sprocket links, these blades 39 being disposed normally parallelto the upper flight of the sprocket chain 38. Each lade is offset at itsforward portion as at 42 and the blades overlap each other, as shown inFigure 5, while they move beneath the hopper 30. j

As they move around the forward sprocket wheel 37 ,v the links tipugwardsonas to discharge the fertilizer downward between the flightofthe chain and the door 32 into the spout 43 which extends downward andforward and has its lower end entered into a tapering auxiliary spout orcontinuation 44 which is supportedas will be later described. The upperend of the spout 43 extends rearward beneath the entire `flight of thesprocket chain 38 so that any fertilizer discharged from this chainywill be Adischarged into the spout. Thus as this chain operates, it willi continually carry olf from the fertilizer hopper 30 a certain amountof fertiliser which will be continuously discharged into the spout andbe discharged vdownward onto the ground. By lifting the fertilizerhopper,

r*access may be had tothe conveyor formed by Ythe sprocket chain and itsplates 39 so that this may berepaired or replaced when necessary. j

As will be seen in Figure 3, the frames 22 'are provided with bearingsfor the shafts' 27 and 35. These bearings as illustrated in Figure 7,are adjustable relative to eachv other so as to take up any looseness inthe chain.

Disposed upon the beams 22 and supported therebyare the seed hoppers 45one for each of the frames 22. Each, ofthese hoppers has a relativelylarge upper portion and a downwardly extending spout 46. Each hopper issupported by a frame 47 which eX- t'ends across the top of the hopper,downward on each side thereof, downward Vto a point beneath thespoutwhere the frame extends inward so that the hopper rests upon theframe. This frame is formed with perforainf tions on each side member ofthe frame The top elementA of the frame 47 is provided with a centralopening 49 wherein is disposed a plug-like member 50 having `an opening51 extending through it through which the shaft of the -seed dischargingplate passes, as will be later stated. The lower end of the spout 46 isprovided with a door 52 which is hinged on one side and may beprovidedwith any suitable latch, the exterior of this door beingformedwith an eye 53 into which the lower end of the auxiliary spout 44engages so as to support theV spout 44 at its lower end. The seed hoppermay be latched to the frame 47 by means of a fhasp 54 which will extendthrough a slot or be otherwise engaged with the frame 47.

Extending downward throughthe top` of the seed hopper is a shaft 55.This shaft in cross sectional view is square or rectangu lar andprovided with the-laterally project# ing tongue or rib 56. The lower'endof the feed'hopper is closed by a plate 57 and the lower end of theshaft is reduced and circular in cross section and passes through the257 plate and supportedl by the vball bearings 58,

the extreme lower end of the shaft being screw-threade`d for thereception of the nuts 59 held in place by a cotter pin 60. The bearingplug previously describedvhas a central opening 51 which fits the shaft55 and through which the shaft passes. Thus this shaft 55 constitutes abearing where it passes through the frame `47. The lower end of thisshaft carries `upon it the seed pla'te61. This seed plate is segmentalin form and is provided with an opening for the reception of the shaft55 so that the seed plate will oscillate with this shaft. The seed plateis recessed on its under face so as to rest uponthe bearing balls 59. Onthis plate is disposed the shield plate 61a.

This seed plate is provided with two slots 62 extending inconvergentrelation to each other and operating within each of theseslots 'is an adjustable block 63 adjusted by means of a screw 64swiveled in the block, the screw 64 extending out through the edge wallof the seed plate and being provided with a serq rated head 65engageable by a spring latch 66 3 mounted on the side wall of the seedplate.

Thus the block 63 will be heldin its adjusted position. The adjacent endwallsv of the opening 62 are curved concavely and the opposed edge faceof the block 63 is also curved Gli 3 concavely and this edge face isbeveled downward and outward, as shown in cross section in Figure 16.The openings 62 also have downwardly and outwardly beveled walls so thatthe seed may readily drop through these openings.

The plate 57 is provided with an opening 67 and as the seed plate 61 isoscillated, the openings 62 will alternately come over this opening 67so as to discharge the seed contained within the opening 62 downwardthrough the opening 67. This opening 67 is also beveled or flareddownwardly so as to permit the ready discharge ofthe seeds or gra-ins.Mounted upon the wall of they seed hopper is a brush for sweeping theseeds from the top of the seed plate, this brush being locatedimmediately `over the opening 67 The brush comprises a block 68 attachedby screws to the wall of the seed hopper and having an approximatelysemi-circular or semioval series of openings therein in which aredisposedpins 69. Each of these pins is headed at ,its upper endso` thatit canA not drop through the opening and is urged downward byv a spring70, these springs at their lower ends bearing over nipplesprojectingupward i u from the upper ends of the pins.V

The springs at theirv upper ends extend around lugs formed upon' a plate71 attached to the wall of the hopper' by abolt 72, this plate' beingangular so as to extend around the rim of the'block 68, the block havinga lug 73 engaging in an opening in the margin of this cover 71 so as ttolock the cover in` place, but permit it to be removed when desired. 1i iVThe1` pins 69 extend downward below the floor 68 and into approximatecontact with the seed plate 57. Thus, as `the seed plate oscillatesinhone direction to carry the opening 62 into alinement with theopening67, surplus seed above the level at the upper face of the plate will beswept aside and held from discharge through the opening 67.

Preferably the block 68 is provided with a centralV opening in which `isdisposed a rather large pin 74 forced downward by a. spring just as arethe ,other pins 69,'this pin 74 acting to force the seed or seedsdownward through the openings 62 and 67 when" theseopenings are' inalinement with. each other. i

For the purpose of oscillating the seed plateand the shaft 55v uponwhich the seed plate is mounted, l mountrupon this shaft 55 thevertically,adjustable arm 75 which is Y held in vertically adjustableposition upon the shaft 55 by means of the set screw 76 andVadditionally by means of the Cotter pin 77 passing through any one of 'aplurality arm from the cross bar 79 but when the pin i 79 is engagedwith the cross bar 78 in any one of a plurality of openings 817 anyreciprocation of the cross bar 7 8 will cause an oscilof openings'in theribV 56. This arm 75 has lation of the shafts 55 and consequent op'-eration of the two seed plates in the two seed hoppers. Y Y

-To cause reciprocations ofthe bar-7 8, I dispose between the twosections of the axle 11 the sleeve 82 which is formed -with'opposedclutch teeth 83, these teeth being ratchet teeth. This sleeve 82 carriesupon it the sprocket wheel 84 and the sleeve 82 constitutes the hub of awheel 85. Thiswheel 85 as shown'in Figure V1 is formed with a pluralityof circumferentially extending tracks which are lettered' a, Y), c, (Z,c and f. Each of these tracks is sinuous in section concentricl 'to the.center ofv rotation of' the Vwhich are disposed a distance from eachother just equal to the thickness of the wheel so that one roller willtravel into the valleys of a corrugation while the other roller isridingiover the crest of the same corrugation. These rollers arepreferably mounted I upon crossed bars 87 which are attached to thereciprocating bar 78 and cause it to reciprocate as the wheel 85 passesbetween the rollers 86. The reciprocation of the bar 7 8 causes theoscillation ofthe arms 7 5 which in turn causes the oscillation of theshaft 55 and the oscillation ofthe corresponding seed late. Y p Thiswheel 85 is a very important feature Y of my invention as it acts tospace the dis- Y wheel through Vto tance apart at which seeds areplanted. The suitable clutches 88 is clutchedto the axle 1l and,therefor-e, makes one complete rotation with each complete rotation ofthe traction wheels 13. The outermost Zone or row a has its corrugationsso spaced apart as to cause a reciprocation of the cross bar 78, oncefor each twelve inches of the travel of the machine so that the hillslwill be plantedV twelve inches apart when the rollers 86 are engagedinthe track or zone a. The sinuosities in the track or Zone Z2 are sospaced apart as to cause the hills to be planted sixteen inches apart,the next AZone cto cause the hillsto lbe planted ten inches apart, thenext 'twenty-four, the next twentyeight, the next thirty-two, and theVZone g to cause the hills to be planted thirty-six inchesapart. Thearms 75'are adjustable upon the vertical shafts so as to bring the crossbar 28 into any desired vertically adjusted position and thus bringtherollers 86 into adjustment with any desired zone of the tracks a, b, c,d, c, f or g. I As before stated, theV wheel'85 is normally Y Vclutchedto the shaft or axle 11 by means of either clutch 88. These are mountedfor :rotation with theshaft 11, but also mounted by avpin 90 passingthrough the shaft. A

spring 91 acts to urge the Vcorrespond ing clutch 88 toward the clutchteeth on the sleeve or hub'82. lLevers 92 are provided pivoted at 93upon the frame of the machine by which the clutches may bel shiftedloutward against the actionof the springs or allowed to engage with theclutch teeth 83. i

Either of these levers 92k or both are adapted to be engaged by latchingdevice 94 mounted upon the rear cross bar of the main frame or inanyother suitable location. When so latched, the corresponding clutch isheld out of engagement with the clutch teeth 83r on the hub v82. Inaddition to the hand operated levers 95, I provide the foot operatedlevers 95 adapted to be pivoted upon a bracket 96, one end of the footoper of themA ated levers engaging the correspondingl clutch member 88and when this pedally operated lever is depressed, it will be obviousthat the clutch will be drawn out of engagement with the hub 82.: Thesepedally oper'-V ated levers, 95, therefore, provide means whereby theclutch maybe momentarily re is uneven and irregular inform.

By with- This is particularly necessary where the field Y Asbeforestated, there is mounted upon V posed to form a relatively shallowfurrow in the ground" if desired.

This shank 99 carries upon it the shieldY 101 preventing earth frombeing piledup infront of the spout of the seed hopper 45.

The shank 99 at its upper end isangularly bent and is adjustablymountedupona bar 102, the forward end ,of this bar being pivot-allymountedV upon downwardly and forwardly extending braces 103. This barcarries upon it the clips 104 and disposed'be tween these clips and thebar are the Shanks of the Vseed coverers 105'and 106. Each of.

these Shanks is twisted at 107 andthen extends rearward and inward sothat the foot 108 of the shank 105 is disposed at its rear end slightlybeyond the point where the seeds are dropped as shown in Figure 2 sothat it acts to partially cover the seeds and partially cover thefertilizer which is discharged from the auxiliary spout 44. The foot 108of the shank 106 is disposed adjacent the rear end of the bar 102 andacts to fully cover the Seeds. Each of the shanks 1.05 and 106 areprovided with a vertical series of apertures 109 and a bolt passesthrough these apertures and through the corresponding clip 104 and thebar 106 so as to hold these coverers in any adjusted position'.

A spring 110 which'surrounds a rod 111 urges the rear end of the bar 102downward but this bar may be vertically adjusted to raise or lower theshank 99 of the furrow opener100 or the covcrers` 105 and 106 by meansof the lever 112. This lever is pivoted on the main frame just forwardof the ferti lizer hopper and is connected by a chain 113 to the rearend of the corresponding bar 102. This lever operates over an arcuaterack 114 and has a hand-operated latch of common construction whereby itmay be latched between any two of the rack teeth.

These rack teeth are preferably ratchet teeth so that the lever 112 maybe drawn rearward without having to lift the bolt or latch. Thus thedepth of action of the furrow opener 100 may be adjusted and thus thefurrow opener may be entirely raised from the ground at the .time whenthe seed dropping and fertilizer dropping mechanism is out of action topermit the machine to travel' all over the place where thev planting isto Vbe done. The seed hopper .is preferably closed at the top, as forinstance, by meansof the segmental covers 114 of which there are two,

hinged to the top cross bar of the frame 47, this top cross bar beingpreferablyof channel iron. Each of these lids 114 is provided with aspring clip 115 adapted Vto embrace the'shaft 55, when the lever isturned upward,

r rugations in the wheel 85 act to oscillate the seed plates so as tocarry one'or the other of the openings over the. opening 67 in the plate57. Thus while one of the openings 62 is filling with seed, the other isdischarging its seed. The kbrushes act to sweep 0E the top oftheseedplate and prevent the discharge of any seed except what is contained inan openingV 62 when one of the openings 62 is disposed in register withthe opening67. At

the same time that the seed is discharged,

fertilizer is being discharged from' the hopper 30 behind andinto thefurrow formed-by the furrow opener 100. l l

The f seed and fertilizer are vpartially covered with earth by the cover105 and then the full covering of earth is secured by the coverer 106.The amount of fertilizer which is discharged may be controlled by thegate 32 von the fertilizer hopper. It will be seen that as the endlesschain 38 passes around the forward sprocket wheel 38, the plates 39swing down to a depending position so that all the fertilizer on theseed plates is cast downward into the rearward eXtension of the spout43. The distance apart of the hills or places depositing the seed arecontrolled by adjusting the arm upon the shafts '55 so as to bring therollers386 into engagement with one or the other of the several tracksor zon-es a vto g. The distance apart of the rows is secured byadjusting the supporting frames 22 toward or from each other upon themain frame l0, this adjustment, of course,

being accompanied by a corresponding adjustmentl of `theclutch members29 on the shafts 27. The wheels may be adjusted to` ward or from'eachother for different rows also. A seat 117 for the driver is mounted uponthe frame in theusual manner. Foot rests 118 are provided for the feetofthe driver.` i 'Y The purpose of providing the two axle sections 11 withthe intermediate sleeve 82 and the two spring actuated clutches 88 is toprovide for'circumstances under which one wheel will run slower vthanthe`other wheeler remainstationary Aas when` the machine is turningacorner or when; some obstruction pref vents one Vwheel from moving asfast as the other. Under these circumstances, of course,

as is well understoo.d,ithe other freely mov-.

both clutches either by the actuation of the hand lever 92 or the footlevers 95. The operation -of one'or theother planting mechanism issecured by disconnecting one or the otherof the planting operating arms75 from the rod? 8 or shifting it out of its operative positionentirely.

In Figure 5, I have illustrated the plates 39 which areconnected to theendless elementsV 38 as being rather large. This is so as to make thedrawing clear, but in actual practice, each joint of this sprocket chain38 shouldbe about live-eighths of an inch from center to center.

` The thin plate 61a disposed above the plate 61 is 4for the purpose ofcovering aportion of plate 61 so as to keep seed from lodging in thelopenings 62' at'the rear ends of the blocks VGSan'd the parts 64 and65.d

While I have illustrated a construction which I believe to beparticularly effective for the purpose intended, I do not Wish to belimited to all of the details of the construction except as defined inthe appended claims asit is obvious that many changes might be ymade inthe arrangement of parts and details tervals including a wheel havingaplurality Y of concentric series of alternate elevations Vanddepressions, the elevations ofrone Vseries being spaced from each otherva different distance than the elevations of any otherseries, and meansadjustable into engagement with any one of said series, sai-d meansbeing operatively connected to the seed .dropping mechanism. n

2. A planter including a supporting frame having traction Wheels and anaxle, a seed planting.mechanismincluding a seed hopper and ano'scillatable seed dropping plate mounted in the bottom of the hopper, aVertically disposed shaft for said plate extending upward out of thehopper, a wheel carried by the axle and having a plurality of series Yversely extending rod carried by said arm,

and a pair of rollers carried upon said rod and disposed one-on eachside ofV the V(wheel andvengageable with any one of said series ofelevations and depressions on the wheel dependent upon the adjustment ofthe arm on the shaft.v Y

3.' Ina planter of the character described, a supporting frame, tractionwheels therefor, an axle rotated bythe traction wheels, a pair of seedhoppers mounted upon the supporting frame for adjustment towardor fromeach other, seed dropping means mounted in each seed hopper, meansactuated by theaxle for causing the actuation of the seed droppingdevices atpredetermined intervals, said means permitting the seedhoppers to be shifted toward or from each other, fertilizer containerslmounted upon the supporting frame rearward of said hoppers andadjustableY toward or from each other, means for discharging fertilizerVfrom each of the fertilizer containers including sprocket wheels and an'endless chain, one. of said sprocket wheels having a driving shaftextending laterally toward the center ofthe signature. supporting frame,a tubular shaft into which l y ing the tubular shaft including 'asprocket Y wheel loosely mountedv upon the axle, and a sprocket wheel onthe tubular shaft, the sprocket ychain connectingk said sprocket wheels,and a pair of clutches manually shiftable vto connect the sprocket wheelon the axle operatively with said axle or disconnect it therefrom.

4. In a planter of the character described,

a supporting frame, traction wheels therefor, an axle driven thereby,oppositely disposed seed planting mechanisms carried upon the supportingframe and including seed drop'- ping means, and means for actuating thefor actuating the seed dropping mechanisms including two rollersengageable one on each side of said wheel and with the correspondingsinuous track, the Vrollers being resiliently yurged against saidtracks.

5. In a seed planter of the character de-y scribed, a planting mechanismtherefor, seed droppingvmechanism therefor, and means for actuating theseed dropping lmechanism at selected intervals including a wheel havinga plurality of concentric series of alternate Y elevated and depressedportions, the elevated portions of one series being spaced from eachother a different distance from the elevated portions of any otherseries, and actuating means for the seed dropping mechanism adjustableinto engagement with any one of said series. f

6. In a seedV planter of the character described, planting mechanism,two seed dropping mechanisms `therefor disposed on opposite sides-of theplanter, and means 4for actuating saidmechanism atselected intervalsincluding awheel disposed between the seed planting mechanisms andhaving on each face agpluralityofV sinuous tracks concentric toeachother, each track :beingvcomposed of alternate-elevations anddepressions, the elevations of one track being spaced from each Y othera different distance than the elevations of any Vother track, andvactuating means for the two Yseed planters including rollers engageableone with each side of the wheel, said rollers being'adjustable toyengage with any one of said tracks'. j

Intestimony'whereof I hereunto Vatlix my 'WILLIAM T. siirniin;

